Proportional Directional Valve 4WRTE16E1-220L-4X/6EG24EK31/F1M - Bosch Rexroth R901573255

Each reversal displaces a noticeable amount of oil from the pilot stage of a size 16 valve, and that surge should not end up in the working return. The 4WRTE16E1-220L-4X/6EG24EK31/F1M therefore drains its pilot oil through a dedicated external line and meters 220 l/min nominal flow at up to 350 bar.

Benefits

• Internal pilot oil supply with external pilot oil return, keeping surges out of the working return.
• 220 l/min nominal flow, maximum flow 460 l/min in size 16.
• 4...20 mA command value on the on-board electronics, 24 VDC on a 7-pole (6 + PE) connector to EN 175201-804.
• Spool symbol E1 with a linear characteristic curve, 3 switching positions and 4 ports.
• Operating pressure up to 350 bar, connection diagram ISO 4401-07-07-0-05, 11.08 kg weight.

Applications

The valve controls main axes on presses and shears that reverse on every cycle. Its separate pilot drain keeps the pilot stage clear of the pressure peaks that arise when large flows are switched. At 220 l/min working and return strokes are equally brisk.

Manufacturer

Bosch Rexroth, material number R901573255. The type designation 4WRTE16E1-220L-4X/6EG24EK31/F1M states size 16, spool symbol E1, 220 l/min nominal flow and series 4X.